Headers & Wire Housings

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KK Connectors

Molex KK Interconnection System consists of connectors that form the building block for creating thousands of different configurations. This system offers polarization features that ensure correct mating. The system incorporates offset header entry holes that provide +180°C polarization and allows both power and signal to carry through the same housing. This connector system also enables loading with optional polarization keys and pegs that ensure the one-way mating of headers and housings. Molex KK Interconnection System comes with customizable KK headers that offer more polarization options and design configurations. These include headers with voided pins, customized pin lengths, kinked PC tails, and varying tin or gold plating options.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Number of Positions	Pitch	Number of Rows	Mounting Style	Termination Style	Mounting Angle	Contact Gender	Contact Plating	Mating Post Length	Termination Post Length	Series	Tradename	Application	Wire Gauge	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Headers & Wire Housings KK 100 Hdr Assy 22-28-6220 Molex 1: ¥234.2 3,126In Stock	Mfr. Part # 22-28-6220 Mouser Part # 538-22-28-6220	Molex	Headers & Wire Housings KK 100 Hdr Assy	Datasheet	3,126In Stock	Cut Tape ¥234.2 ¥199.3 ¥169.4 Reel ¥167.8 ¥151 View ¥137.9 ¥131.2 ¥127.6	Min.: 1 Mult.: 1 : 225	Headers	Breakaway	22 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	9.17 mm (0.361 in)	3.05 mm (0.12 in)	42376	KK					Reel, Cut Tape
Headers & Wire Housings 2.54MM BREAKAWAY RA 3 CKT Tin 22-28-8031 Molex 1: ¥44.8 17,291In Stock	Mfr. Part # 22-28-8031 Mouser Part # 538-22-28-8031	Molex	Headers & Wire Housings 2.54MM BREAKAWAY RA 3 CKT Tin Learn More about Molex kk	Datasheet	17,291In Stock	¥44.8 ¥37.5 ¥33.2 ¥28.7 View ¥23.4 ¥21.3 ¥19.9 ¥19.1 ¥18.3	Min.: 1 Mult.: 1	Headers	Breakaway	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin			42377	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 156 Crimp Housing Housing Ramp 03 Ckt 26-03-4032 Molex 1: ¥38.2 38,912In Stock	Mfr. Part # 26-03-4032 Mouser Part # 538-26-03-4032	Molex	Headers & Wire Housings KK 156 Crimp Housing Housing Ramp 03 Ckt Learn More about Molex kk	Datasheet	38,912In Stock	¥38.2 ¥32.1 ¥28.4 ¥24.6 View ¥21.8 ¥18.1 ¥17.4 ¥16.4 ¥13.6	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	3 Position	3.96 mm (0.156 in)	1 Row	Cable Mount / Free Hanging	Crimp	Straight	Socket (Female)				6442	KK	Wire-to-Board, Power		- 40 C	+ 80 C
Headers & Wire Housings VERT B/A HDR 7P TIN SQUARE PIN 26-48-1071 Molex 1: ¥121.3 5,685In Stock	Mfr. Part # 26-48-1071 Mouser Part # 538-26-48-1071	Molex	Headers & Wire Housings VERT B/A HDR 7P TIN SQUARE PIN Learn More about Molex kk	Datasheet	5,685In Stock	¥121.3 ¥108.6 ¥105.8 ¥101.7 View ¥96.2 ¥90.4 ¥86 ¥83.1 ¥78.6	Min.: 1 Mult.: 1	Headers	Breakaway	7 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			41661	KK					Bulk
Headers & Wire Housings 24 POS HEADER 26-48-2245 Molex 1: ¥1,815.5 537In Stock	Mfr. Part # 26-48-2245 Mouser Part # 538-26-48-2245	Molex	Headers & Wire Housings 24 POS HEADER Learn More about Molex kk	Datasheet	537In Stock	¥1,815.5 ¥1,568 ¥1,484.9 ¥1,448.4 View ¥1,393.6 ¥1,262.4 ¥1,197.6 ¥1,167.7	Min.: 1 Mult.: 1	Headers	Breakaway	24 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	11.43 mm (0.45 in)	4.37 mm (0.172 in)	41671	KK	Wire-to-Board, Power		- 40 C	+ 80 C
Headers & Wire Housings 6 CKT STRAIGHT HDR A DR ASLY MATTE FINISH 36642-0001 Molex 1: ¥215.9 4,403In Stock	Mfr. Part # 36642-0001 Mouser Part # 538-36642-0001	Molex	Headers & Wire Housings 6 CKT STRAIGHT HDR A DR ASLY MATTE FINISH	Datasheet	4,403In Stock	Cut Tape ¥215.9 ¥186 ¥179.4 ¥167.8 Reel ¥119.4 View ¥129.7 ¥124.9 ¥114.6	Min.: 1 Mult.: 1 : 1,120	Headers	Shrouded	6 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	9.27 mm (0.365 in)	2.79 mm (0.11 in)	8619	KK	Wire-to-Board, Signal				Reel, Cut Tape
Headers & Wire Housings KK 100 PCB Assy Top Assy Top 10 Ckt Tin 38-00-1430 Molex 1: ¥387 3,111In Stock	Mfr. Part # 38-00-1430 Mouser Part # 538-38-00-1430	Molex	Headers & Wire Housings KK 100 PCB Assy Top Assy Top 10 Ckt Tin Learn More about Molex kk	Datasheet	3,111In Stock	¥387 ¥284 ¥275.7 ¥245.8 View ¥229.2 ¥215.9 ¥194.3 ¥189.4	Min.: 1 Mult.: 1	Headers	Socket Assembly	10 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Socket (Female)	Tin		3.3 mm (0.13 in)	4455	KK	Board-to-Board, Signal		- 40 C	+ 105 C	Tray
Headers & Wire Housings KK TERM 18-20G TRIF Reel of 1000 08-52-0112 (Mouser Reel) Molex 1,000: ¥10.6 66,000In Stock	Mfr. Part # 08-52-0112 (Mouser Reel) Mouser Part # 538-08-52-0112-MR	Molex	Headers & Wire Housings KK TERM 18-20G TRIF Reel of 1000 Learn More about Molex kk	Datasheet	66,000In Stock	Reel ¥10.6	Min.: 1,000 Mult.: 1,000 : 1,000	Contacts					Cable Mount / Free Hanging	Crimp		Socket (Female)	Tin			6838	KK		20 AWG to 18 AWG	- 40 C	+ 105 C	Reel
Headers & Wire Housings KK 156 PCB Assy RtAn 07 Ckt Tin 09-48-2071 Molex 1: ¥220.9 2,344In Stock	Mfr. Part # 09-48-2071 Mouser Part # 538-09-48-2071	Molex	Headers & Wire Housings KK 156 PCB Assy RtAn 07 Ckt Tin Learn More about Molex kk	Datasheet	2,344In Stock	¥220.9 ¥187.7 ¥179.4 ¥167.8 View ¥152.3 ¥137.2 ¥121.8 ¥111.1 ¥106.5	Min.: 1 Mult.: 1	Headers	Socket Assembly	7 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Socket (Female)	Tin			41815	KK
Headers & Wire Housings HOUSING 3P 09-48-3036 Molex 1: ¥174.4 5,862In Stock	Mfr. Part # 09-48-3036 Mouser Part # 538-09-48-3036	Molex	Headers & Wire Housings HOUSING 3P Learn More about Molex kk	Datasheet	5,862In Stock	¥174.4 ¥148.2 ¥144.7 ¥113.8 View ¥109.1 ¥95.2 ¥89.4 ¥86.2 ¥84	Min.: 1 Mult.: 1	Headers	Receptacle	3 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Socket (Female)	Gold		3.05 mm (0.12 in)	41815	KK			- 40 C	+ 80 C	Tray
Headers & Wire Housings 8 POS HEADER .156 SPOX PCB W/ FRLOK 09-65-2088 Molex 1: ¥129.6 10,578In Stock	Mfr. Part # 09-65-2088 Mouser Part # 538-09-65-2088	Molex	Headers & Wire Housings 8 POS HEADER .156 SPOX PCB W/ FRLOK	Datasheet	10,578In Stock	¥129.6 ¥107.1 ¥105.3 ¥96.3 View ¥93.3 ¥86.7 ¥83.1 ¥77.9 ¥74.6	Min.: 1 Mult.: 1	Headers	Receptacle	8 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			5273	KK, SPOX			- 40 C	+ 105 C	Bulk
Headers & Wire Housings 9CKT 3.96MM WAFER W/LOCK 527309A 09-65-2098 Molex 1: ¥249.2 3,232In Stock	Mfr. Part # 09-65-2098 Mouser Part # 538-09-65-2098	Molex	Headers & Wire Housings 9CKT 3.96MM WAFER W/LOCK 527309A Learn More about Molex kk	Datasheet	3,232In Stock	¥249.2 ¥212.6 ¥181 ¥179.4 View ¥160.1 ¥145.2 ¥132.7 ¥127.2	Min.: 1 Mult.: 1	Headers	Receptacle	9 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	10.65 mm (0.419 in)	3.6 mm (0.142 in)	5273	KK, SPOX			- 40 C	+ 105 C
Headers & Wire Housings KK Hdr Vrt 4 Ckt 3.96mm Pitch 15um Au 171813-1004 Molex 1: ¥294 3,078In Stock	Mfr. Part # 171813-1004 Mouser Part # 538-171813-1004	Molex	Headers & Wire Housings KK Hdr Vrt 4 Ckt 3.96mm Pitch 15um Au Learn More about Molex kk 396 rpc headers	Datasheet	3,078In Stock	¥294 ¥262.4 ¥257.5 ¥237.5 View ¥227.6 ¥212.6 ¥197.7 ¥189.4 ¥181	Min.: 1 Mult.: 1	Headers	Power	4 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	11.38 mm (0.448 in)	2.37 mm (0.093 in)	171813	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK RPC 156 Hdr Assy FrLk 04 Ckt Tin T&R 171813-3004 Molex 1: ¥240.8 3,059In Stock	Mfr. Part # 171813-3004 Mouser Part # 538-171813-3004	Molex	Headers & Wire Housings KK RPC 156 Hdr Assy FrLk 04 Ckt Tin T&R Learn More about Molex kk 396 rpc headers	Datasheet	3,059In Stock	Cut Tape ¥240.8 ¥204.3 ¥196 ¥179.4 Reel ¥154.1 View ¥169.4 ¥153.3 ¥140.4	Min.: 1 Mult.: 1 : 500	Headers	Locking	4 Position	3.96 mm (0.156 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	11.38 mm (0.448 in)	2.37 mm (0.093 in)	171813	KK	Wire-to-Board		- 40 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings KK RPC 100 Hdr FrLk Vert03 Ckt 15Au T&R 171856-4003 Molex 1: ¥230.9 2,260In Stock	Mfr. Part # 171856-4003 Mouser Part # 538-171856-4003	Molex	Headers & Wire Housings KK RPC 100 Hdr FrLk Vert03 Ckt 15Au T&R Learn More about Molex kk 254 rpc headers	Datasheet	2,260In Stock	Cut Tape ¥230.9 ¥202.6 ¥197.7 ¥174.4 Reel ¥151.5 View ¥162.8 ¥155.8 ¥151.3	Min.: 1 Mult.: 1 : 1,050	Headers	Locking	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold	7.44 mm (0.293 in)	2.34 mm (0.092 in)	171856	KK	Wire-to-Board		- 40 C	+ 105 C	Reel, Cut Tape
Headers & Wire Housings KK Hdr RA 3 Ckt 2.54mm Pitch Sn 171857-0003 Molex 1: ¥58.1 74,887In Stock	Mfr. Part # 171857-0003 Mouser Part # 538-171857-0003	Molex	Headers & Wire Housings KK Hdr RA 3 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	74,887In Stock	¥58.1 ¥48.8 ¥41.5 ¥37 View ¥35 ¥32.1 ¥31.1 ¥27.4	Min.: 1 Mult.: 1	Headers	Locking	3 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	6.73 mm (0.265 in)	2.54 mm (0.1 in)	171857	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings KK Hdr RA 6 Ckt 2.54mm Pitch Sn 171857-0006 Molex 1: ¥84.7 12,069In Stock	Mfr. Part # 171857-0006 Mouser Part # 538-171857-0006	Molex	Headers & Wire Housings KK Hdr RA 6 Ckt 2.54mm Pitch Sn Learn More about Molex kk 254 rpc headers	Datasheet	12,069In Stock	¥84.7 ¥72.1 ¥61.3 ¥54.8 View ¥51 ¥49.3 ¥46 ¥42.7	Min.: 1 Mult.: 1	Headers	Locking	6 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Right Angle	Pin (Male)	Tin	6.73 mm (0.265 in)	2.54 mm (0.1 in)	171857	KK	Wire-to-Board		- 40 C	+ 105 C	Bulk
Headers & Wire Housings HSG 11P W/LKG RAMP 22-01-2117 Molex 1: ¥63.1 15,481In Stock	Mfr. Part # 22-01-2117 Mouser Part # 538-22-01-2117	Molex	Headers & Wire Housings HSG 11P W/LKG RAMP Learn More about Molex kk	Datasheet	15,481In Stock	¥63.1 ¥53.2 ¥47 ¥40.9 View ¥36 ¥30.6	Min.: 1 Mult.: 1	Wire Housings		11 Position	2.54 mm (0.1 in)	1 Row								2695	KK	Wire-to-Board, Signal				Bulk
Headers & Wire Housings 13P HOUSING W/RAMP 22-01-2137 Molex 1: ¥36.5 15,650In Stock	Mfr. Part # 22-01-2137 Mouser Part # 538-22-01-2137	Molex	Headers & Wire Housings 13P HOUSING W/RAMP Learn More about Molex kk	Datasheet	15,650In Stock	¥36.5 ¥36	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	13 Position	2.54 mm (0.1 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				2695	KK	Wire-to-Board, Signal				Bulk
Headers & Wire Housings 16 CRT TERM HOUSING 22-01-2161 Molex 1: ¥58.1 9,399In Stock	Mfr. Part # 22-01-2161 Mouser Part # 538-22-01-2161	Molex	Headers & Wire Housings 16 CRT TERM HOUSING Learn More about Molex kk	Datasheet	9,399In Stock	¥58.1 ¥49.3 ¥42 ¥37.5 View ¥35.4 ¥33.2 ¥33.1	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	16 Position	2.54 mm (0.1 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				2695	KK	Wire-to-Board, Signal				Bulk
Headers & Wire Housings HSG 11P W/RAMP/RIBS 22-01-3117 Molex 1: ¥43.2 24,122In Stock	Mfr. Part # 22-01-3117 Mouser Part # 538-22-01-3117	Molex	Headers & Wire Housings HSG 11P W/RAMP/RIBS Learn More about Molex kk	Datasheet	24,122In Stock	¥43.2 ¥36.9 ¥34.1 ¥33.2 View ¥30.7 ¥28.7 ¥28.6 ¥24.9	Min.: 1 Mult.: 1	Wire Housings	Receptacle Housing	11 Position	2.54 mm (0.1 in)	1 Row	Cable Mount / Free Hanging	Crimp		Socket (Female)				2695	KK	Wire-to-Board, Signal				Bulk
Headers & Wire Housings VERT PCB HDR 8P TIN PLATING 22-03-2081 Molex 1: ¥104.6 22,028In Stock	Mfr. Part # 22-03-2081 Mouser Part # 538-22-03-2081	Molex	Headers & Wire Housings VERT PCB HDR 8P TIN PLATING Learn More about Molex kk	Datasheet	22,028In Stock	¥104.6 ¥88.2 ¥81.2 ¥70.3 View ¥64.8 ¥60.1 ¥57.5 ¥56.6	Min.: 1 Mult.: 1	Headers	Pin Strip	8 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin			4030	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings 2.54 MM KK VERT HDR 22-03-2161 Molex 1: ¥167.8 2,345In Stock	Mfr. Part # 22-03-2161 Mouser Part # 538-22-03-2161	Molex	Headers & Wire Housings 2.54 MM KK VERT HDR Learn More about Molex kk	Datasheet	2,345In Stock	¥167.8 ¥147.5 ¥145.2 ¥134 View ¥125.2 ¥115.3 ¥107.5 ¥106.1	Min.: 1 Mult.: 1	Headers	Pin Strip	16 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.43 mm (0.135 in)	4030	KK	Board-to-Board, Wire-to-Board, Signal		- 40 C	+ 80 C	Bulk
Headers & Wire Housings KK 100 Hdr FrLk Vert4-positions: 1,3 w/ contacts; 2,4 void 22-04-5048 Molex 1: ¥73.1 11,370In Stock	Mfr. Part # 22-04-5048 Mouser Part # 538-22-04-5048	Molex	Headers & Wire Housings KK 100 Hdr FrLk Vert4-positions: 1,3 w/ contacts; 2,4 void Learn More about Molex kk	Datasheet	11,370In Stock	¥73.1 ¥61.8 ¥54.3 ¥48 View ¥43 ¥35.2 ¥33.1 ¥32.2 ¥29.2	Min.: 1 Mult.: 1	Headers	Locking	4 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Tin	7.49 mm (0.295 in)	3.56 mm (0.14 in)	6373	KK			- 40 C	+ 80 C
Headers & Wire Housings KK 100 Hdr FrLk Vert 02 Ckt Gold 22-11-2026 Molex 1: ¥54.8 23,807In Stock	Mfr. Part # 22-11-2026 Mouser Part # 538-22-11-2026	Molex	Headers & Wire Housings KK 100 Hdr FrLk Vert 02 Ckt Gold Learn More about Molex kk	Datasheet	23,807In Stock	¥54.8 ¥44.8 ¥39.4 ¥35 View ¥30.9 ¥29.4 ¥28.7	Min.: 1 Mult.: 1	Headers	Locking	2 Position	2.54 mm (0.1 in)	1 Row	Through Hole	Solder Pin	Straight	Pin (Male)	Gold			6373	KK	Wire-to-Board, Signal		- 40 C	+ 80 C